权威例句
The Hill cryptographic system with unknown cipher alphabet but known plaintextTHE TWO-MESSAGE PROBLEM IN THE HILL CRYPTOGRAPHIC SYSTEM WITH UNKNOWN CIPHER ALPHABETNon-endomorphic perfect ciphers with two elements in plaintext alphabetThe cipher alphabet of John de Foxton's Liber cosmographiaeA Malay Cipher AlphabetAlphabetic Verses and Cipher Alphabets from Western Theban MonasteriesAn Enhancement of One Time Pad Based on Monoalphabeth Caesar Cipher to Secure Grayscale ImageFlaws of Substitution Ciphers Frequency List for English AlphabetDescription of non-endomorphic maximum perfect ciphers with two-valued plaintext alphabetThe Etymologic Cipher Alphabet of One Hundred and Twenty Letters